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authorMyles Watson <mylesgw@gmail.com>2010-06-17 16:16:56 +0000
committerMyles Watson <mylesgw@gmail.com>2010-06-17 16:16:56 +0000
commit7eac4450b32f6961d5abd8dae32c5eefc1a07c11 (patch)
tree455e0181fea42d7c6bab09878ef35dc666789977 /src/mainboard/tyan
parente10757ed525cdd1a5263b9d79e284310c999c0f7 (diff)
Always enable parent resources before child resources.
Always initialize parents before children. Move s2881 code into a driver. Signed-off-by: Myles Watson <mylesgw@gmail.com> Acked-by: Peter Stuge <peter@stuge.se> git-svn-id: svn://svn.coreboot.org/coreboot/trunk@5633 2b7e53f0-3cfb-0310-b3e9-8179ed1497e1
Diffstat (limited to 'src/mainboard/tyan')
-rw-r--r--src/mainboard/tyan/s2881/mainboard.c125
1 files changed, 0 insertions, 125 deletions
diff --git a/src/mainboard/tyan/s2881/mainboard.c b/src/mainboard/tyan/s2881/mainboard.c
index 6c41839227..9da5fe8ff4 100644
--- a/src/mainboard/tyan/s2881/mainboard.c
+++ b/src/mainboard/tyan/s2881/mainboard.c
@@ -21,133 +21,8 @@
*/
#include <device/device.h>
-#include <console/console.h>
-#include <device/smbus.h>
#include "chip.h"
-/**
- * Do some S2881-specific HWM initialization for the ADT7463 chip.
- *
- * See Analog Devices ADT7463 datasheet, Rev C (2004):
- * http://www.analog.com/en/prod/0,,766_825_ADT7463,00.html
- */
-static void adt7463_init(device_t dev)
-{
- device_t smbus_dev, adt7463;
- struct device_path path;
- int result;
-
- /* Find the SMBus controller (AMD-8111). */
- smbus_dev = dev_find_device(0x1022, 0x746b, 0);
- if (!smbus_dev)
- die("SMBus controller not found\n");
- printk(BIOS_DEBUG, "SMBus controller found\n");
-
- /* Find the ADT7463 device. */
- path.type = DEVICE_PATH_I2C;
- path.i2c.device = 0x2d;
- adt7463 = find_dev_path(smbus_dev->link_list, &path);
- if (!adt7463)
- die("ADT7463 not found\n");
- printk(BIOS_DEBUG, "ADT7463 found\n");
-
- /* Set all fans to 'Fastest Speed Calculated by All 3 Temperature
- * Channels Controls PWMx'.
- */
- result = smbus_write_byte(adt7463, 0x5c, 0xc2);
- result = smbus_write_byte(adt7463, 0x5d, 0xc2);
- result = smbus_write_byte(adt7463, 0x5e, 0xc2);
-
- /* Make sure that our fans never stop when temp. falls below Tmin,
- * but rather keep going at minimum duty cycle (applies to automatic
- * fan control mode only).
- */
- result = smbus_write_byte(adt7463, 0x62, 0xc0);
-
- /* Set minimum PWM duty cycle to 25%, rather than the default 50%. */
- result = smbus_write_byte(adt7463, 0x64, 0x40);
- result = smbus_write_byte(adt7463, 0x65, 0x40);
- result = smbus_write_byte(adt7463, 0x66, 0x40);
-
- /* Set Tmin to 55C, rather than the default 90C. Above this temperature
- * the fans will start blowing harder as temperature increases
- * (automatic mode only).
- */
- result = smbus_write_byte(adt7463, 0x67, 0x37);
- result = smbus_write_byte(adt7463, 0x68, 0x37);
- result = smbus_write_byte(adt7463, 0x69, 0x37);
-
- /* Set THERM limit to 70C, rather than the default 100C.
- * The fans will kick in at 100% if the sensors reach this temperature,
- * (only in automatic mode, but supposedly even when hardware is
- * locked up). This is a failsafe measure.
- */
- result = smbus_write_byte(adt7463, 0x6a, 0x46);
- result = smbus_write_byte(adt7463, 0x6b, 0x46);
- result = smbus_write_byte(adt7463, 0x6c, 0x46);
-
- /* Remote temperature 1 offset (LSB == 0.25C). */
- result = smbus_write_byte(adt7463, 0x70, 0x02);
-
- /* Remote temperature 2 offset (LSB == 0.25C). */
- result = smbus_write_byte(adt7463, 0x72, 0x01);
-
- /* Set TACH measurements to normal (1/second). */
- result = smbus_write_byte(adt7463, 0x78, 0xf0);
-
- printk(BIOS_DEBUG, "ADT7463 properly initialized\n");
-}
-
-static void dummy_noop(device_t dummy)
-{
-}
-
-static struct device_operations dummy_operations = {
- .read_resources = dummy_noop,
- .set_resources = dummy_noop,
- .enable_resources = dummy_noop,
- .init = adt7463_init,
-};
-
-static unsigned int scan_root_bus(device_t root, unsigned int max)
-{
- struct device_path path;
- device_t dummy;
-
- max = root_dev_scan_bus(root, max);
-
- printk(BIOS_DEBUG, "scan_root_bus ok\n");
-
- /* The following is a little silly. We need a hook into the boot
- * process *after* the ADT7463 device has been initialized. So we
- * create this dummy device, and we put the ADT7463 S2881 specific
- * settings in its init function, which gets called
- * as the last device to be initialized.
- */
-
- path.type = DEVICE_PATH_PNP;
- path.pnp.port = 0;
- path.pnp.device = 0;
- dummy = alloc_dev(root->link_list, &path);
- dummy->ops = &dummy_operations;
-
- return max;
-}
-
-static struct device_operations mainboard_operations = {
- .read_resources = root_dev_read_resources,
- .set_resources = root_dev_set_resources,
- .enable_resources = root_dev_enable_resources,
- .init = root_dev_init,
- .scan_bus = scan_root_bus,
-};
-
-static void enable_dev(struct device *dev)
-{
- dev->ops = &mainboard_operations;
-}
-
struct chip_operations mainboard_ops = {
CHIP_NAME("Tyan S2881 Mainboard")
- .enable_dev = enable_dev,
};